/*
 * Copyright (c) 2022 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __CPU_PROBES_PC_COUNT_TRACKER_HH__
#define __CPU_PROBES_PC_COUNT_TRACKER_HH__

#include <unordered_set>

#include "cpu/probes/pc_count_tracker_manager.hh"
#include "params/PcCountTracker.hh"
#include "sim/probe/probe_listener_object.hh"

namespace gem5
{

class PcCountTracker : public ProbeListenerObject
{
  public:
    PcCountTracker(const PcCountTrackerParams &params);

    /** setup the probelistener */
    virtual void regProbeListeners();

    /**
     * this function is called when the probelistener receives signal from the
     * probe
     *
     * @param pc the targeting Program Counter address
     */
    void checkPc(const Addr& pc);

  private:
    /**
     * a set of Program Counter addresses that should notify the
     * PcCounterTrackerManager for
     */
    std::unordered_set<Addr> targetPC;

    /** the core this PcCountTracker is tracking at */
    BaseCPU *cpuptr;

    /** the PcCounterTrackerManager */
    PcCountTrackerManager *manager;
};
}

#endif // __CPU_PROBES_PC_COUNT_TRACKER_HH__
